<span>Let the number of chairs in a row be x, then the total number of chairs is 9x + 3 = 7x + 19. i.e. 9x + 3 = 7x + 19; 9x - 7x = 19 - 3; 2x = 16 x = 16/2 = 8. Thus there are 8 chairs in each row. Therefore, the total number of chairs is given by 9(8) + 3 = 72 + 3 = 75.I hope that my answer is helpful! Let me know if you need something more :)</span>
Answer:
K=-2.5
Step-by-step explanation:
because the line is in the middle of 2 and 3 and is below which means that it is negative
Answer:
50 cents
Step-by-step explanation:
The ratios can be added to find exactly how many of each coffees there are.
3 + 7 + 5 = 15
300 / 15 = 20
20 x 3 = 60 black coffees
20 x 7 = 140 sugared coffees
20 x 5 = 100 milk coffees
Multiply by the price.
60 x 50 = 3000 cents = $30 for black coffee
140 x 60 = 8400 cents = $84 for sugared coffee
100 x ? = 100? cents = $1? for milk coffee
Get rid of the ?.
164 - (30 + 84) = 50
$50 for milk coffee.
$1? = $50
? = $.50
It will take Gayle 11 weeks
Answer:
Step-by-step explanation:
x-2y=5-2x+6y=-9
+2y +2y
x=5-2x+8y=-9
-5 -5
x=-2x+8y=-14
-x -x
-3x+8y=14
